1. Firmly Fixed: The of the stopper has anti skid lines, which can be manually tightened, the inner of nylon is easy to lock, not loose, and effectively avoids wear on the locking part of the drill. 4. Precise Drilling: The limiter can precisely control the depth of drilling, which greatly improves the quality and efficiency of your work. 2. Aluminum Alloy: The outer of the limiter is made of aluminum alloy, which is , beautiful and . 3. Adjustable Inner Diameter: The inner diameter of the stopper can be adjusted, one of which can be multiple, which can be fixed on different positions. 5. Wide Range of Applications: The drilling stopper can be used for furniture installation, ordinary tiles, wood, metal, plastic and brick., Weight: 0.02755778275 Pounds, Manufacturer: Jaywool